9. Arabian commentators

Some of their works survive, some have been lost. Their names are not important
to us, but the number of them (and these are still not all the commentators on Euclid)
and their dates show the degree of interest Arabia took in Euclid in the 10th c.
The names I have given are abbreviated. For instance, an-Nairizi is really Abu 'l
'Abbas al-Fadl b. Hatim an-Nairizi.